Seam for sewed articles



J. R. MOFFATT.

SEAM FOR SEWED ARTICLES.

APPLICATION FILED FEB. 26, I911.

1 3 3 1 71 7. Patented Feb. 24, 1920.

v To all wfiointtmay concern? the fabric sections in section andi the:211"? JAMES R. MOFFATT, anemones, immoisgnssmnon' irnoUNIONHSPEOIALMACHINE.

COMPANY; .01; cH-Icnqo, ILLINOIS, A- egean-cannon "or: ILLINOIS;

smi hnonsnwnnnnrmms emme;

' Applic'atidn m nut l 26,1917? 'Sridl his. 1 51,037.

Beit known .that I, J MEsR: Morimrr; a citizen of th'e United States;residing at Chicago; in; the county; of Cook; Stator" of Illinois; haveinvented certain-new and3use= ful' Improvements in:- SGHJBSfOYSE WQd Arrticles; I of. which the .followingg is a descrip tion', reference: beinghad to theraccornpany ingdrawing, and. to" the figures of referencein'arked th'ereon.

The inventionrelates to new an dfuseful" improvements? in" sewed"seams," and more" particularly to a sewediseam having a plii rality ofspaced parallel needle threads joined "by cross threads" extending fromone side of "'the seam to theother:

' An object of the "invention" is toprovide' a seanr oftlie" ahove caracten wherein" the' cross threads are so disposed asxto morecffectively cover. the fabric intermediate the side edges of the seam,anwd'wherein the cross threads when the seam is used for uniting fabricsections are disposed so as to p more effectively tiedown the loose endsof the thread v of the fabric sections;

In the drawings':a

l iggl lre 1i is a plan ;view of" aseam" em hodying iny, improvements ;1

Fig- 2 isa lo ttoin plan' viewofthesearn;- Fig;,3"is== adiagrainmaticview" showing:

rangement of the threads relative thereto; Fig.1 l is a view;similarwodiigg 3;" hutshowing; the fahric sections 'sl'rghtlyrovere" ppa a a a My; improvedseam is especially joining fabric sections" informing What is' known in the artasa flat seani Thesections 'offfahricto he unitedor joinedh'ave' their edge portions abutted or slightlyoverlapped and the fabric sections thus arranged are joined by threadsconsistingoftwonee dle threads formed into parallelrows of loopsdisposed on opposite sides of thezcen ten of'the' seam and extendin'through'"the? respective fabric. sections; 1 T ese loops are suitablysecured on the under face of the fabric sections preferably byalooperthread" or threads which not only concatenatewithi the needleloops hutextend across'the center;

line of the seam, joining the needlethread t the" fabric" sections;

the seam.

threads;- Tliesecross threads are" independ lbo f s on opposite sides'ofthecenter line of p Oh 'the other: face of the; fabric the needlethreads are connected by crosst vi'sted'loops the? strands of whichcross 7 each other-atone side of. the center line of the" seam. soasto'tie down-the ends" of the threads of the fabricsections, and the-cross"threads also cross each" other at: the center" line 0t theseam; I

Referringmore in detail to thedi'aW ingsr -p I have shown my improved;seam as used for joining fabric sections; The two fabric sections areindicated "at'F and F 1 In Figs. I '1, Qandoflthe drawings,"Ihaveshowrithe edge portions of thejfaloric sections abntted andzmeeting. atthecenter line ofthe seam whiclrgis indicatedat s. The abutted edgesarejoined hyineansof thneads.

These. joining threads include two "needl threads; the" other; at n.

on. opposite sides of the" meeting" edges of indicated'at'- n mayialsolie used, and this threadfisformed into a seriesofloops which areparallel I with the rows of loops in the needle th-reads' and n, and therow of loops in the needle thread n are; disposed inthe-center' line ofthe seam, passing pref erably hetweenthe abntte'd edgesof the fab; l'iQsections as clearly-shown in Figs. 1:, 2' and*3.-. All" three rows 10f?needle loops are one of which is 'indi'cated 'at a; and

These needle threads area-rrangedin parallel rows of loops :disposedKathi-rd needle thread-g suitably" anchored on" the lower face of thefabric; and "when my "iniprovedf seam is-used for joiningdabri'csections these-loops are: prefemb1 'r. anchoredzby av looper thread, in

dicated at Pin. the 'drawings; .whichlooper thread passes throughallOftheJneedle loops,

locking the: same and} extending from one V covering the" seam andtying" together the abutted edges;

Upon the *upper face of the fabric there side" ofthe-sean to the' other,

are "two'cross threads, one ofi which indicated at 1" and the other at2. The cross thread 1 is formed alternately intohalf twisted loops-"1*and" 1"? The loops'l are all located". on the right hand d side of theseam, as viewed in Fig. 1, and these loops in the cross thread 1. Thecrossthread 2 is formed into a series of half-twisted loops 2 I and 2".The loops 2 are all located on the the loops 1. It will thus beseen thatthe- Vshank of each needle loop is encircled by right hand side ofthecenter of'theseam, as

the left hand side of the sea1n. 7 these loops is penetrated by a loopin the needle thread. The loops 2 are penetrated by the needle loopsintermediate the needle loops passing through the loops 1" and the loops2* are penetrated by the needle loops between the needlev loops passingthrough the half-twisted loop. formed in the cross thread. I o r Thestrands of the loop 1 cross at 1, while the strands of the needle loop 1cross at 1.

The strands of the loop 2" cross at 2, and the strands of the loop 2cross at 2. 'It will be noted that 'thesecrossings of thestrandsof thehalf-twistedloops are at one side of the center line of the seam, thecrossings 1 and ,7 2 being on the right of the center line of 1' thefabric sections are united to .form a flat the seam, while the crossingsl and 2 bein on the left of the center ofvtheseam. t

will also be [noted-that the cross threads 1 and 2 cross each other at3, that is, at the center of the seam. The needle thread a? lies overthe crossing ofthe threadsat 3, and the successive loops in the needlethread a pass between thesuccessive crossings in the cross threads I and2.

It is well understood that when the edge portions of fabric are trimmedpreparatory to uniting the same, the cutting of the fabric sectionsleavesloose ends of threads. When seam by threads without interfoldingof the fabric sections, these loose ends of threads ofteniprotrudethrough the covering threads and form anobjectionable seam. One ofthepurposes of the presentinvention is to "form a more effectivecovering for;

the loose ends of threads in the fabric sections. It will be notedthatthe strands of the half-twisted loopsin the cross threads cross eachother at pointsaway from the center line of the seam, and thesecrossings of the threads cause the 'oining threads to overlie, tie down,and e actively cover all the I tie down these loose ends of the threads.My

loose ends in the threads of. the fabric sec tions. The joining threadsalso cross'at the center line of the seam and again serve toarrangement; of the cross threads on the upper faceof the fabric,therefore, forms a very effective covering, tyin down, as above noted,all the loose ends of the threads in the fabric sections. I j

In Fig. 4 of the drawings, I have shown the fabric sections F and F-slightly over- Here again, the half-twisted loops form a veryeifective'covering for the non-selvage or 'cut edge of the fabricsections, tying down .theloose ends thereof. I 1 viewed in Fig. 1,whilethe loops 2* are on Each of 7 surfaces and the like.

Having thus described the invention, what;

is claimed as new is I s 1. A seam for sewed articles comprising fabricsections, means for joining said'fabric sections including threeparallel rows of needle thread loops, the outer rows being disposed atopposite sides oftheedges of the fabric'sections, while the middle rowis disposed midway between said outerrows of needle loops, alooperthread joining all the needle loops at one face of the fabric lapped,and the center lineofneedle loops in the needle thread n passingthroughthe p overlapped portions of the fabric'sections.

sections and extending from one side of the seam to the other, crossthreadsIjoinin'g the outer rows of needle thread loops on the other faceof'the fabric sections, said cross' threads being disposed'so as tocross each other underneath themiddle needle thread and between theloops therein and each cross thread at each side of the seam,beingformed into half twisted loops disposed so that the strands ofeac'h'loop cross each other between themiddle row of needle loops anouter row of needle loops."

'2..A seam for sewedarticles comprising fabric sections, and means forjoining "said fabric sections including needle threads'ar ranged inparallel rows ofloops disposed on opposite sides of the center lineofthe seam and extending respectively through the fabric sections, meansfor securing the needle loops and joining the same on one face of thefabric sections, and cross threads join ing the needle threads on theother face of the fabric sections, said cross threads at each side ofthe seam being formed into half? twistedloops disposed so that thestrands of each loop-cross each other at points away.

from the center line of the seam whereby the cut ends of the threads ofthe fabric sections are tied down, said cross threads crossing, eachothersubstantially at the center" line of the seam.

3. A seam for sewed articles a fabric, needle threads arranged in threeparallel rows of loops, which loops extend through the, fabric, meansfor securing the needle loops on one face of the fabric, and

cross threads joining the outer rows of needle thread loops on the otherface of the fabric, said cross'threads being formed into half-twistedloops disposed so that there is comprising list a half-twisted loopextending about the shank of each needle loop in the outer rows ofneedle loops, the strands of each halftwisted loop crossing each otherbetween the outer rows of needle loops and the center row of needleloops, said cross threads extending under the center needle threadbetween successive needle loops formed therein and crossing each otherunderneath said center thread.

In testimony whereof I afl ix my signature in the presence of twoWitnesses.

JAMES R. MOFFATT.

WVitnesses: I S. GEORGE TATE, A. D. GILGAN,

